Metal-reinforced concrete pile.



E. MOHUN.

METAL REINFORGED CONCRETE PILE.

I APPLIOATION FILED SEPT. 29, 1909.

958,967. Patented May 4, 1910.

"-To all whom it may concern:

" E gTA' Tns PAT T OFFICE.

EDWARD momm, oavrc'ronm, Barr e QOIiU-MBIA, GANAZDA.

mmnn nnmroncnn concnnrn PIIJE.

. Specification of Letters Patent.- Applicaflonfiled' September'29, m.sum-minaret.

-. Pa-tesaana ei, 1911i Be -'t known that ZI,'EnwAim Morton, a

4 citizen of the'Dominionofi Canada, residing at 'Victoria, in theProvinceof British Co-' lumbla, Canada, have invented a new and usefulMetal-Reinforced Concrete Pile, of

which the following is a specification.

This invention relates to a metal reinforced concrete pile inWhichthe'metal used is of such form andis so distributed "as to afford.a maximum of strength to properly reinforce the material of the concretewith a minimum of Wei ht. In'carryingiout thisidea 1 make-use 0%standard sections of angle iron or steel for the longitudinal reinorcingmembers, as such are notonly easier to obtain butcan be better joinedtogether by cover angles where a greater length of the pile is requiredthan the length of iron ob-' I tainable. In cross section of the pilethe metal .is also better distributed than where rods of iron or steelare used. Outside of these longitudinal members. I. .place open meshexpanded metal through which the concrete of the outer side iseffectually bonded-with that within the metal reinforcement. It must bedistinctly understood that'this pile is not one wherein the strength ofthe 8 metal is itself sufiicien-t to bear the load ,to

be imposed upon it, and the concrete or cement is applied merely toprotect the metal from corrosion; but is distinctly a concrete pilereinforced with metal to impart a greater strength under fiexure such asa pile structure maybe-ex sed 'to.

The invention is particular y described inthe following specification,reference being made to the drawings with which it is acaccompanied, inwhich:

Figure 1 shows a vertical section of the upper end of the pile, Fig.2, aportion of the mid-length of the pile showing the rein-.

forcing frame in elevation, and F 3, a

The drawings show the applicationof my having a jet pipe throu h. whichwater under pressure may be of the reinforcing'frame may be used in .abearingpilefor driving, or in a sheet pile or other structure wheresimilar requirements exist. 1

In these drawings 2 represents the jet-pipe extending lengthwise-of thepile, which jet pipeis connected outward at '3 toth'e side of the pilefor connection to an hydraulic' pres sure service, and at 4 sred'u'cedto a nozzleand secured in the b0 t om shoe of the pile. To the up er endof'the pile is secured a bolt 5 by w liich a timber superstructuremay beattached to the Y pile, which bolt is furnished with an anchoring flange6to afford it a secure-hold-ao-f the'concrete. Freely fit ted ongthisjetpipe 2 at intervals of approxielivered to *the lower end to sink thepile but the structure- I system of construction to a pileo'f that classmately eight feet apart are a series o f liglitY cast iron cross frames10 which frames conform td'thecross sectionfofthe pile-but are smallerin diameter to afford the necesszu'y thickness ofconcrete outside. ofthe metal structure to preclude the possibility of it breaking =from*-that "structure in use. The diifiensions of the metal reinforcing framein relation 'tothepile need not lee-according to the scale shown in theas. the

structure of the frame'i'sfsuch'asfto -bond the concrete outside of theframe eifectually with that inside the frame, gothat the-crosssectionof-th'e frame may'ben uehgreaterin; proportion to the crosssection-dimension of the pil'e'than is here shown. 4

The cross frames 10, the form of which'is' clearly shown in Fig. 5, haveprovision for the reception of angle irons 11 which extend continuouslyfrom the shoe 5' to within a short distance of the 'top, and where thelength of the pile requiredis in excess of the length of .angle ironorsteel availablethe continuity is preserved by.- abutt joint and coverangles at each joint of the angle iron or ini any other a proved mannThese angle irons 11 fit reely in the recesses prov1 ed' for them inthecross frames 10 and' may be secured tightly in these recesses by wedges12 of soft etal such as horse shoe nails by which the-angle irons aredriven closely int'd the outer corners of the recesses. The crossframeszlO are-desi ed tomaintain'b'both the 'jet pipe 2 and t elongitudinal angle irons 11in osition in relation to one another. whilee concrete isfeing- Around the longitudinal angle 'irons'between eachpair 0f cross frames 10, open mesh expanded metal-13 is placed and issecurely tied by wire at 14 to the angle irons, and at 15 to the crossframes 10 and tothe adjacent lengths of the expanded metal.

' These ties bind the expanded metal sheets to each other and to theangle irons and hold them in their respective positions while theconcrete is being filled and packed. Theties 15 are of equivalent crosssectional area to that 'of the expanded metal so that the continuity ofthe.expanded metal is efi'ectually preserved throughout the length .ofthe pile.

The bottom shoe 8 is made of sheet metal in the form of a'truneatedpyramid and the bottom cross frame 10 rests uponportions l6 split andinwardly bent from the sides. The cross frame is centered on itssupports 16 within the shoe by metal hooks 17 screwed into holes drilledin the supports. The an gle irons 11 pass through the bottom frame 10for a short distance and are anchored against the under side of theframe 10 by cross rods 18 through each adjacent p'air.

iVhen the reinforcing frame is complete the concrete 9 is molded thereonpreferably while the frame is in a horizontal position as by that meansit can more quickly and eti'ectually be packed to thoroughly fill inbetween the various parts of the metal structure.

The principal advantages of this method of construction, wherein angleirons and expanded metal are used to reinforce a concrete pile, are thatthe metal is of a form 'that is readily obtainable, audits crosssectional area is suchthatitcan be arranged that that-area isdistributed toward the outside of the pile and while its surface: a'e

sufiiciently ample to afford a good surface to the concrete thosesurfaces are not so uniformly plane that the concrete will readily breakfrom it, .as the'expanded metal enablesth concrete outside of theframe'to be strongly bonded with that-in the inside of the frame. I I

Having now particularly described my in yention and explained'the reasontherefor,- I hereby declare that what I claim as new and desire to beprotected in by'Letters Patent, is; 1. In a concrete pile, a pluralityof angle irons running throughout the length of the pile, a series ofspacing frames having apertures to permit passage of said angle lronsand form seats therefor, expanded metal members wound around said angleirons between said spacing frames, means fortying saidmetal members tosaid angle irons and to said spacing frames, :1 sheet metal shoelaterally extended to the outside diameters. of-the pile and having cutportions inwardly bent, and means for securing oneof said spacing framesto said inwardly bent'port ons. v

' 2. In a concrete pile, a plurality of angle irons running throughoutthe length of the pile, a series of spacing frames having apertures topermit'passage of said angle irons and form seats therefor, expandedmetal members wound around said angle irons between said spacing frames,each of said spacing frames comprising an outer rectangular portion anddiametrically disposed. cross portions merging with a central aperturedportion and a pipe within the pile projeeted through said aperturedportions of said spacing frames.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

. vEDWARD MOHUN.

Witnesses:

CECIL M. Ronnn'rs, HENRY H. IIoBBIs.

